package command.light;

/**
 * Created by lenovo on 2018/1/2.
 */
public class Light {
    String desc=null;
    public Light() {
    }

    public Light(String desc) {
        this.desc = desc;
    }

    public void on(){
        System.out.println("light on ......");
    }
    public void off(){
        System.out.println("light off ......");
    }

}
